<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th><input type="checkbox" v-model="isAll" /> <span>全选</span></th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="(item, index) in goodList" :key="index">
          <td>
            <input
              type="checkbox"
              v-model="item.checked"
              @click="changeFn(index)"
            />
          </td>
          <td>{{ item.name }}</td>
          <td>{{ item.price }}</td>
          <td>
            <button :disabled='item.num===1' @click="reduceNum(index)">-</button>
            {{ item.num?item.num:1 }}
            <button @click="addNum(index)">+</button>

          </td>
          <td>{{ item.num * item.price }}</td>
          <td><button @click="remove(index)">删除</button></td>
        </tr>
      </tbody>
      <tfoot>
        <tr>
          <td>合计:</td>
          <td colspan="5">{{sumPrice}}</td>
        </tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import { mapState, mapGetters, mapMutations, mapActions } from "vuex";
export default {
  data() {
    return {
      isSh: false,
    };
  },
  computed: {
    ...mapState(["goodList"]),
    ...mapGetters(["sumPrice"]),
    isAll: {
      set(val) {
        this.IsAllChange(val);
      },
      get() {
        return this.goodList.every((item) => item.checked === true);
      },
    },
  },
  methods: {
    ...mapMutations(["remove", "changeInput", "IsAllChange","reduceNum",'addNum']),
    // 输入框改变事件
    changeFn(index) {
      this.changeInput(index);
    },
  },
};
</script>

<style></style>
